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Sagot :

Réponse:

(2-x)(x-3)

2x - 6 - x^2 + 3x

-x^2 + 5x - 6

= 2*x + 2*-3 + -x*x + -x*-3
= 2x -6 -x² + 3x
= -x² 5x -6

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